León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile
León Castellanos Jankiewicz

@leoncastjan

international law and arms trade. working on the b sides.

ID: 808695082161410052

linkhttps://www.leoncastellanos.com/ calendar_today13-12-2016 15:28:27

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Join us tomorrow at the ASIL Hague Closing Plenary for an engaging discussion on how international law can curb wrongful weapons transfers. 📅 Friday, 18 April, 17:00-18:30 EST 📍 Washington Hilton, Washington D.C.

Join us tomorrow at the <a href="/asilorg/">ASIL</a> Hague Closing Plenary for an engaging discussion on how international law can curb wrongful weapons transfers.

📅 Friday, 18 April, 17:00-18:30 EST
📍 Washington Hilton, Washington D.C.
León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

Honored to moderate the ASIL Annual Meeting Hague Closing Plenary last Friday: 'Can Arms Trade Bring About Peace?' in Washington D.C. with stellar speakers Leila Sadat, Josh Paul, Lana Baydas and Allison McManus. Watch here: youtube.com/watch?v=eGgDgC…

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New publication with my friend Momchil Milanov! We follow the intellectual journey of André Mandelstam, a human rights forerunner who also dabbled with imperialism — a complicated figure, yet one worth studying. Open access EJIL: Talk! : academic.oup.com/ejil/advance-a…

SIPRI (@sipriorg) 's Twitter Profile Photo

Unprecedented rise in global military expenditure as European and Middle East spending surges. New #SIPRI data on global #MilitarySpending out now. Press release ➡️ bit.ly/3GH5GNe Fact Sheet ➡️ doi.org/10.55163/AVEC8… #GDAMS2025 #MilitaryExpenditure #DefenseBudget

Unprecedented rise in global military expenditure as European and Middle East spending surges. New #SIPRI data on global #MilitarySpending out now.
Press release ➡️ bit.ly/3GH5GNe
Fact Sheet ➡️ doi.org/10.55163/AVEC8…

#GDAMS2025 #MilitaryExpenditure #DefenseBudget
León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

Such an honor to address the United Nations Working Group on Firearms in Vienna this week on the contribution of the Firearms Protocol to conflict prevention and peacebuilding! Read my speech on leoncastellanos.com

Such an honor to address the <a href="/UN/">United Nations</a> Working Group on Firearms in Vienna this week on the contribution of the Firearms Protocol to conflict prevention and peacebuilding! Read my speech on leoncastellanos.com
León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

New report on autonomous weapons systems & human rights published by the Harvard International Human Rights Law Clinic and Human Rights Watch: hrw.org/news/2025/04/2…

León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

Call for blog symposium proposals, with 'Arms Transfers and Proliferation' being one of the topics of interest Opinio Juris: opiniojuris.org/2025/05/06/cfp…

León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

"Not so fast": EU Parliament to contest Ursula von der Leyen's fast-track proposals to raise €150 billion in loans (taxpayer debt) to bolster EU weapons procurement: euractiv.com/section/defenc…

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I spoke to The Intercept about Google's self-avowed inability to conduct proper risk assessments in a contract it concluded with Israel to provide cloud and machine-learning services: theintercept.com/2025/05/12/goo…

León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

No surprise here: the lack of transparency in the arms trade is notorious and often enables corruption and abuse ft.com/content/0bac7e…

León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

Hoy el The New York Times reporta sobre las armerías mexicanas "estrictamente reguladas" — fuerte contraste con la violencia que genera el mercado negro de armas traficadas y desviadas James Wagner: nytimes.com/es/2025/05/17/…

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New investigation finds that independent U.S. gun dealers accounted for 83% of trafficked weapons to Mexico, "including most of the most dangerous types of trafficked guns." Full story by Sean Kevin Campbell & Topher L. McDougal via The Conversation: theconversation.com/us-gun-traffic…

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Scheinbaum introduces sweeping decree on Mexico's gun regulations: creates new rules for private security companies, prohibits clandestine manufacturing of 3D-printed guns, outlaws switches enabling automatic firepower: jornada.com.mx/noticia/2025/0…

León Castellanos Jankiewicz (@leoncastjan) 's Twitter Profile Photo

La Suprema Corte estadounidense se pronunciará pronto sobre la demanda de México contra armerías. Hablé con Alejandro Domínguez esta semana sobre lo que nos podemos esperar: